Saved Bookmarks
| 1. |
Consider the following diagram in which an electrochemical cell is coupled to an electrolytic cell. What will be the polarity of electrodes A and B in the electrolytic cell ? |
|
Answer» Solution :* ELECTRODE (A) has negative electric charge and electrode (B) has positive electric charge, because electrochemical cell of Zn-Cu is attached with electrolytic cell. * In electrochemical cell Zn is OXIDIZED `(ZntoZn^(2+)+2e^(-))` such electrons are MOVED on the Zn METAL and hence, it is negative, so the electrode (A) attached with it become positive. * In cell, copper ion undergoes reduction reaction and hence amount of electron get reduced and so copper become positive and the electrode attached with it become negative. |
|